These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Kinnikuman Nisei
Arc Fatigue - They've been in the past since 2005!
To put it in context, Yudetamago has spent more time on this single tournament arc than any other arc they've done, including arcs from the original Kinnikuman. Which is sad, really, considering that they were pretty good at avoiding this trope.
Technically speaking, the Tag Arc is its own series
Even so, the same storyline has been going on for six years.
Boring Invincible Villain - Thunder and Lightning. They've gone through almost the entire tag arc only being mildly inconvenienced by the heroes with the sole exception of Geronimo of all people destroying their bell. Even other, very strong villains are jobbing to them!
In the finals, this has been apparently subverted in the case of Thunder since we get a load of his Freudian Excuse to explain why he was evil due to him being the result of his father raping his mother.
Ear Worm - With my rice I like to have some cow cow cow/ Tastes so very good I don't care how how how...
"Ga-ga-gan ga-ga gan (Do the Muscle!) Zu-ba-ba ba-ba ban (Hustle Muscle!)"
Germans Love David Hasselhoff - The anime wasn't very popular in Japan, but became ridiculously so in America. One-shot villain Puripuriman/Monseuir Cheeks is also popular in America, to the point that he was used as Mr. Exposition throughout the remainder of the dub after his only appearance in the show proper.
Hilarious in Hindsight - Anyone who's read the original series might find it funny that Kevin Mask constantly switches sides, since Robin Mask had a habit doing so in the first series*
Though admittedly, not as much as Kevin.
Internet Backdraft - Known as "The Kinnikuman Incident". Fans were not pleased at the fact that Akira Kamiya did not reprise his role as Kinnikuman in this series. It Got Worse when in an interview, Kamiya himself said that he wasn't even offered the role.
The Scrappy - Terry the Kid. Not only are most of his moves basically Terryman's moves, which are already criticized for being lame, he also tries to deny the fact that he's nothing like Terryman and that he performs the moves at different angles and timing, which isn't fooling anybody.
Canadianman's getting his fair share of hatred for taking successive levels in jerkassery, but his Scrappy status was really cemented when he tried to unmask Chaos as Kinnikuman Great.
Strawman Has a Point - Anybody who's read Kinnikuman would agree with the old Choujin that Mantarou is completely out of line for assuming that Suguru's fights were fixed. But then, you learn that after the last arc in the original series, Suguru annulled his fight records and burnt every video of his fights. The only photographs of him left was when he was still a complete coward, so combining with the fact that Suguru became a Bumbling Dad when Mantarou was born, it's not hard to see why Mantarou thought his father fixed his fights.
Woolseyism - Some of the dialog's meaning was changed completely. Kid Muscle (to Roxanne): "Bring your two friends! We could have a foursome. (long pause) ...for golf!"